Biology Chapter 11 Bio Energetic Mcqs Test Online Punjab Class 11th

• <<
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• >>

 0%

Question 1 of 10

Biology

1. During the light dependent stage of photosynthesis, the photo activated pigment removes an electron from the hydroxylation derived from the water molecule. The fate of the free hydroxyl radical is that it:

Is used to produce adenosine triphosphate from adenosine diphosphate

Reduces carbon dioxide to sugar

Is broken down into oxygen and a free radical of hydrogen

Is used to raise the activation level of chlorophyll by donating positive charge

Question 1 of 10

Question 2 of 10

2. During dark reactions the three carbon atoms of 3-PGA are derived from

RuBP + CO₂ + PEP

CO₂ only

RuBP only

RuBP + CO₂

Question 2 of 10

Question 3 of 10

3. Removal of the source of carbon dioxide from photosynthesizing chloroplasts results in rapid changes in the concentration of certain chemicals.

Which one of the following represents the correct combination of concentration changes?

	ATP	Ribulose bishposphate	Phosphoglyceric acid (PGA)
A	Decreases	Decreases	Increases
B	Decreases	Increases	No change
C	Increases	Increases	Decreases
D	Increases	No change	Increases

C

A

B

D

Question 3 of 10

Question 4 of 10

4. ATP synthesis during light reactions is

Oxidative

Photophosphoryation

Substrate phosphorylation

Photolysis

Question 4 of 10

Question 5 of 10

5. Chlorophyll is soluble in

Organic solvent

Not in any solvent

Water

Water and organic solvent

Question 5 of 10

Question 6 of 10

6. Photo respiration takes place only in

Mitochondria

Green parts of the plant

All cells of the plant

Root

Question 6 of 10

Question 7 of 10

7. Carbon dioxide labeled with ¹⁴C has been used to identify the intermediate compounds in the Calvin cycle, the light-independent stage in photosynthesis. Which compound would be the first to contain the ¹⁴C?

Starch

RuBP

Glucose

PGA

Question 7 of 10

Question 8 of 10

8. What are the products of the light reactions in photosynthesis?

ATP, PGA and oxygen

ATP, NADPH₂ and oxygen

ATP and NADP

ATP, PGA and NADH₂

Question 8 of 10

Question 9 of 10

9. In C₄ plants, fixation of CO₂ occurs in

Spongy mesophyll and bundle of sheath

Palisade tissue

Phloem tissue

Cortex of stem

Question 9 of 10

Question 10 of 10

10. In C₃ plants first stable product of photosynthesis during dark reaction is:

RuBP

Oxaloacetate

PGA

PGAL

Question 10 of 10

 Loading...

 

Other Related test

• Punjab 11th Class Physics Chapter 1 Measurements Mcqs Test Online
• Punjab 10th Class Physics Chapter 9 Atomic and Nuclear Physics Mcqs Test Online
• Punjab 11th Class English Chapter 13 God be Praised Mcqs Test Online
• Punjab 9th Class Islamiat Chapter 3 Ilm Ki Farziyat o Fazeelat Mcqs Test Online
• Punjab 9th Class Physics Chapter 1 Quantities and Measurement Mcqs Test Online
• Punjab 11th Class Computer Science Chapter 5 Network Communication and Protocols Mcqs Test Online
• Punjab 9th Class Physics Model Paper 2 MCQs Test Online
• Punjab 9th Class Computer Model Paper 5 MCQs Test Online
• Punjab 10th Class English Chapter 3 Try Again Mcqs Test Online
• Punjab 12th Class Computer Chapter 6 Functions Mcqs Test Online